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Q. What is compound?
A compound is a substance which consists of two or more elements chemically combined. The elements in a compound aren't simply mingled together as they are in a mixture. In its place they are combined in a way such that the compound has properties that are different from those of the elements of which it is composed. Every compound is represented by a formula a combination of the symbols of the elements that make up the compounds. You may already recognize some chemical formulas such as H2O for water, NaCl for table salt and NH3 for ammonia.
Amino acids Proteins are a class of biologically significant substance. They are important to virtually all processes in living systems. A few of acids are hormones that offer
What is a salt bridge? Salt bridge is a device used to link two electrodes on electrochemical cell. It maintains electrical neutrality and internal continuity. It is shown by
Metamerism - Type of Isomerism This type of isomerism is due to the difference in the nature of alkyl groups attached to the polyvalent atoms or functional set. Metamers always
2NO N2 + O2 has a Keq of 85 Keq = [N2}{02} ------- [NO]2 at equilibrium, would have more reactants or products
which is the main postulate of bohr''s model of atom
Knocking - Characteristics of hydrocarbons The metallic sound throughout working of an internal combustion engine is known as knocking. "As much the compression greater wil
why we consider methyl using prefixes?
Theory of the experiment
An excess of NaOH solution was added to 100 ml of a ferric chloride solution. This caused the precipitation of 1.425 gram of Fe(OH)3 . calculate the normality of ferric chloride so
Which of the following hydrides are ionic: (1) CaH 2 (2) BaH 2 (3) SrH 2 (4) BeH 2
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